/Engine/Source/Runtime/Engine/Classes/Kismet/KismetTextLibrary.h
Returns true if A and B are linguistically not equal (A != B), ignoring case.
static bool NotEqual_IgnoreCase_TextText ( const [FText](API\Runtime\Core\Internationalization\FText) & A, const [FText](API\Runtime\Core\Internationalization\FText) & B )